Contiki-NG
memory-barrier.h
1/*
2 * Copyright (c) 2017, George Oikonomou - http://www.spd.gr
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 *
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * 3. Neither the name of the copyright holder nor the names of its
15 * contributors may be used to endorse or promote products derived
16 * from this software without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
21 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
22 * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
23 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
24 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
25 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
27 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
29 * OF THE POSSIBILITY OF SUCH DAMAGE.
30 */
31/*---------------------------------------------------------------------------*/
32/**
33 * \addtogroup sys
34 * @{
35 *
36 * \defgroup memory-barrier CPU/Compiler memory barriers
37 * @{
38 *
39 * API for CPU/Compiler memory barriers
40 */
41/*---------------------------------------------------------------------------*/
42#ifndef MEMORY_BARRIER_H_
43#define MEMORY_BARRIER_H_
44/*---------------------------------------------------------------------------*/
45#include "contiki.h"
46/*---------------------------------------------------------------------------*/
47#ifdef MEMORY_BARRIER_CONF_ARCH_HEADER_PATH
48#include MEMORY_BARRIER_CONF_ARCH_HEADER_PATH
49#endif /* MEMORY_BARRIER_CONF_ARCH_HEADER_PATH */
50/*---------------------------------------------------------------------------*/
51#ifndef memory_barrier
52/**
53 * \brief Insert a memory barrier
54 *
55 * It is the platform/CPU developer's responsibility to expand this macro to
56 * a function that creates a memory barrier. Calling this macro will otherwise
57 * not generate any code.
58 */
59#define memory_barrier()
60#endif
61/*---------------------------------------------------------------------------*/
62#endif /* MEMORY_BARRIER_H_ */
63/*---------------------------------------------------------------------------*/
64/**
65 * @}
66 * @}
67 */